Computed Tomography for Guided Biopsies
- Why might I need a CT scan if I am having a biopsy?
- How should I prepare for a CT scan if I am having a biopsy?
- What type of CT equipment is used for guided biopsies?
- How does a CT scan for guided biopsies work?
- Will I experience pain during a CT scan?
Why might I need a CT scan if I am having a biopsy?
The radiologist performing your biopsy may use a CT scanner to observe and follow the biopsy needle as it approaches and reaches the targeted tissue within your body. CT imaging significantly shortens the amount of time it takes to complete the biopsy and increases the accuracy of your diagnosis.
How should I prepare for a CT scan if I am having a biopsy?
To prepare for a CT scan, we recommend you dress comfortably. Also, avoid any clothing that contains metal objects such as snaps or zippers that can affect the CT image. Depending on your individual scan, you may be asked to drink contrast before you arrive. Contrast material is a dye that makes your organs and blood vessels more visible when you are scanned.
What type of CT equipment is used for guided biopsies?
The CT scanner is a specialized machine that looks like a large doughnut. You will lie on a movable table that goes in and out of the center of the machine. Most CT studies use an advanced unit called a spiral CT that records a large number of pictures in a short time.
How does a CT scan for guided biopsies work?
A CT scan requires that you to lie flat your back. A rotating device spins around your body creating a beam of x-rays. A detector takes snapshots of the beam after it passes through your body and a powerful computer program then processes the images and displays them in different ways for examination. A radiologist then reviews the images to look at the area in question.
Will I experience pain during a CT scan?
No, CT scanning is a painless procedure. If contrast material is used, you may feel flushed or get a metallic taste in your mouth, usually lasting no more than a minute or two. In rare cases, you may experience other side effects. Contact the CT technologist or your doctor if these occur or if you have questions about the use of contrast.
